I am the [proud] holder of subscriptions to several magazines.
However – I’ve discovered that I just don’t care about most of what is any given issue; there are times when more than half of the magazine is of interest, but usually it’s substantially closer to 10% (excluding ads – include them, and you’re probably down to 5-6%).
It’d be awesome if there was a way of getting a print analogue to an RSS aggregator – in fact, if you know of any, please let me know!
But since there’s not, I’ve adopted a fairly-stringent policy of recycling magazines that show up in my mailbox if I don’t get to them within 2 weeks: and if somehow I miss that deadline, they definitely get scrapped when the new issue arrives.
The only time I will read an out-of-date magazine is when I’m waiting in a doctor’s or dentist’s office, or at the oil change place. There’s just no reason to read “news” and “insights” that old when you can still get them digitally from the magazine websites within days of the print copy arriving in your mailbox.